oracle备份数据文件

ORACLE 只读数据文件备份与恢复

第一章只读数据文件备份与恢复 BLOG文档结果图：只读数据文件是只读表空间的数据文件，其数据块包括文件头在内不允许更改（少数管理性命令除外）。将表空间设置为只读状态的命令：SQL>alter tablespace TBS_READ read only;Tablespace ...

Oracle数据库物理文件备份/恢复

host cp/usr/oabak/temp/control01.ctl/app/oracle/oradata/testoa/control01.ctl host cp/usr/oabak/temp/control02.ctl/app/oracle/flash_recovery_area/testoa/control02.ctl host cp/usr/oabak/temp/system01.dbf/app/oracle/oradata/...

Oracle数据库控制文件在备份恢复中的作用

整理自《Oracle database 11g RMAN备份与恢复》001 控制文件平常的作用是负责数据库的物理结构。顾名思义，控制文件控制数据库查找物理文件的位置，并控制每个文件当前包含（或应当包含）的头信息，其内容包括数据文件信息、重做日志信息和...

oracle数据库exp命令导入导出dmp文件演示，oracle数据库备份还原功能

查看导出的文件。数据库导入命令：注：如果目标数据库已存在表要直接替换可以加上这个参数 ignore=y。fromuser 指定原 schema 表，touser 指定目标 schema 表。C:\Users\Administrator>imp ncc_qt/1@orcl file=f:\ncc0303.dmp fromuser=ncc...

ORACLE基础学习-RMAN应用-归档模式有备份，丢失数据文件恢复

一、归档模式有备份，丢失数据文件恢复：1、查看数据库是否在归档模式下运行，archive log list：2、模拟实验环境，在scott用户下操作，emp表插入数据：3、模拟实验环境，切换到rman模式下做完全备份，同时配置备份参数，CONFIGURE ...

[Oracle]如果误删了某个数据文件，又没有被备份，能否恢复？

如果你有从这个数据文件创建之前，直到现在的，所有的ArchiveLog 和 Online REDO，是有可能进行恢复的。执行：RMAN>restore datafile<fileid>RMAN>recover datafile<fileid>RMAN>sql 'alter database datafile<fileid>onliine';本文转自健...

ORACLE基础学习-RMAN应用之（归档模式无备份，丢失数据文件的恢复）

二、归档模式无备份，丢失数据文件的恢复：首先要意识到，这种恢复是有条件的，只有在某些特定条件下，才有可能在没有备份的情况下恢复丢失的数据文件。同时又需意识到不是所有丢失的文件都是可以被成功恢复的。1、创建实验环境：确认是否...

oracle数据库中的内容全部丢失,只有RMAN的备份文件(包括数据，参数，控制文件)，恢复...

下面是数据中的数据文件，参数文件，控制文件全部丢失，只有RMAN备份的文件，包括数据文件，参数文件，控制文件。恢复数据库到备份状态 RMAN>delete backup;RMAN>backup database;RMAN>backup spfile;RMAN>shutdown abort;Oracle instance ...

ORACLE11g 没有控制文件如何通过rman备份恢复数据的详细实战过程

因为抽取命令里面需要填写一个个数据文件，这里有个前提是自己要熟悉自己的Oracle实例的文件目录，知道备份的时候oracle实例有多少个数据文件（包括文件存放目录），这样就可以快速的整理出来抽取命令的sql。如果这些都忘记了，还可以去...

windows计划任务+批处理文件实现oracle数据库的定时备份与恢复

1.备份：PS:2014-1-15 如果导出的dmp数据文件不大的话，就直接每天导出好了，不要只保存七天的数据。然后顶起通过winrar对文件进行打包，我发现dmp文件的压缩包还是很高的。那么就需要考虑在导出的dmp文件末尾加上日期了。bat脚本里面有...

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